KR20190001639A - Teeth whitening sticker - Google Patents

Abstract

The present invention relates to a teeth whitening sticker. An objective of the present invention is to provide a teeth whitening sticker which can exhibit an excellent teeth whitening effect by using a relatively small amount of the whitening composition without loss of the whitening composition by allowing a teeth whitening composition with a superior teeth whitening effect to directly come into contact with the surface of teeth, thereby directly transferring the teeth whitening composition to the surface of teeth. According to the present invention, the teeth whitening sticker comprises: an adhesion layer; a silica layer laid up on the top surface of the adhesion layer; a medicine layer laid up on the top surface of the silica layer; and a cover layer laid up on the top surface of the medicine layer. The adhesion layer includes an adhesion part formed by applying an adhesive to a portion or more of one surface of the adhesion layer, the silica layer includes silica (SiO_2) particles, the medicine layer has pores formed therein, and the medicine layer may comprise a peroxide selected from the group composed of hydrogen peroxide, carbamide peroxide, calcium peroxide, sodium peroxide, sodium peroxoborate, tetrasodium pyrophosphate peroxide, and mixtures thereof.

Description

Teeth whitening sticker {TEETH WHITENING STICKER}

The present invention relates to a sticker for tooth whitening. And more particularly, to a sticker for teeth whitening that enables a composition having a tooth whitening effect to be directly brought into contact with a surface of a tooth, thereby enhancing a tooth whitening effect conveniently.

The causes of discoloration of teeth known to date include endogenous tooth discolorations caused by nerve damage in the teeth or overdosage of antibiotics such as tetracycline, exudation of food adsorbed on the teeth surface or cigarette spots, It can be divided into tooth discoloration.

Tooth whitening agents are often used to whiten teeth discolored by these various causes. Most tooth whitening agents available on the market today are active oxygen-releasing peroxides which contain hydrogen peroxide or peroxide, Is a peroxide. However, peroxides are not well compatible with commonly used dentifrice raw materials. In particular, in the case of an abrasive used to physically remove contamination of a tooth, metal ions are contained as impurities, which causes decomposition of peroxides during manufacture, resulting in expansion of the tube due to generation of gas in the product, .

It is well known that the tooth whitening effect of peroxides is proportional to the content. However, when the content of peroxides is increased to a certain level or more, problems arise in stimulation and safety.

Therefore, it is necessary to develop a composition capable of increasing the whitening effect while reducing the content of peroxide. In particular, since tooth whitening is generally performed using an excessive amount of whitening agent in consideration of the loss of whitening agent in order to deliver sufficient whitening ingredient to the teeth due to loss of whitening agent in the environment of the oral cavity and the eating or breathing process, There is a problem of side effects.

Therefore, it may be considered to use a tooth whitening patch or mouthpiece containing a whitening component as a means for enabling the tooth whitening component to be more effectively transmitted to the tooth surface. However, in the conventional whitening patch, when the mouth is moved such that the patch is attached to the teeth and the mouth is moved, the above-mentioned protection layer is shifted from the water-soluble ointment agent and the water-soluble adhesive so that the water-soluble ointment agent is deposited on various parts of the oral cavity such as the gums and tongue, The conventional whitening mouthpiece has a problem in that it is difficult to continuously transmit whitening ingredients and is difficult to be worn and managed. In addition to the loss of whitening components and loss of whitening components in the oral cavity, There is a problem causing side effects or troubles.

Therefore, it has been developed a sticker for tooth whitening which is attached to the teeth and directly transfers the whitening substance to the tooth surface, thereby greatly enhancing the whitening effect, but not peeling or giving a foreign body feeling in the daily life area.

KR 20-0388592 Y1

It is an object of the present invention to provide a tooth whitening composition which has excellent teeth whitening effect and is directly brought into contact with a tooth surface to directly transmit the tooth whitening composition to a tooth surface, thereby achieving an excellent whitening effect with a relatively small content without loss of the whitening composition And to provide a sticker for whitening teeth.

Further, it is attached to the tooth surface with a sticker to provide a long-term whitening ingredient to the teeth, and to prevent the side effect that the whitening ingredient flows to the gum side.

It is also an object of the present invention to provide a sticker for teeth whitening which has no problem that the sticker adhered to the teeth and adhered to the teeth during daily life is detached or peeled off from the teeth,

In order to achieve the above object, a tooth whitening sticker according to an embodiment of the present invention includes an adhesive layer 100; A silica layer (200) laminated on the adhesive layer; A chemical agent layer 300 laminated on the silica layer; And a label layer (400) laminated on the upper surface of the drug layer, wherein the adhesive layer comprises an adhesive portion formed by applying an adhesive on at least a part of one surface of the adhesive layer, and the silica layer comprises silica (SiO ₂ ) Wherein the drug layer is formed of pores and the drug layer is selected from the group consisting of hydrogen peroxide, carbamide peroxide, calcium peroxide, sodium peroxide, sodium peroxoborate, , Tetrasodium pyrophosphate peroxide, and mixtures thereof. The term " peroxide "

The silica contained in the silica layer may have an average particle diameter of 0.1 to 100 μm.

The silica may be one in which at least a portion of the surface is coated with wax.

The medicament layer may further comprise a natural extract selected from the group consisting of Stellaria alsina var. Undulata extract, Clematis apiifolia extract, and mixtures thereof.

The medicament layer may further comprise a natural extract selected from the group consisting of Cinnamomum yabunikkei extract, Potentilla chinensis extract, and mixtures thereof.

The natural extract may be nano-encapsulated.

The label layer may be formed on the upper surface of a coating layer comprising a material selected from the group consisting of a fluorine resin, a urethane resin, an acrylic resin, a silicone resin, polyethylene (PE), vinylidene chloride (PVDC), PET, PVC, (500). ≪ / RTI >

The peroxide and the natural extract may be mixed at a weight ratio of 1:10 to 10: 1.

And a pattern or color may be printed on one side of the coating layer.

Hereinafter, the present invention will be described in more detail.

A tooth whitening sticker according to an embodiment of the present invention includes an adhesive layer 100; A silica layer (200) laminated on the adhesive layer; A chemical agent layer 300 laminated on the silica layer; And a label layer (400) laminated on the upper surface of the drug layer, wherein the adhesive layer comprises an adhesive portion formed by applying an adhesive on at least a part of one surface of the adhesive layer, and the silica layer comprises silica (SiO ₂ ) Wherein the weakener layer is formed of pores and the drug layer 300 comprises at least one of hydrogen peroxide, carbamide peroxide, calcium peroxide, sodium peroxide, sodium perborate Sodium peroxoborate, sodium peroxoborate, tetrasodium pyrophosphate peroxide, and mixtures thereof.

The adhesive layer 100 is directly attached to the teeth so that the tooth whitening sticker is fixed to the teeth. The pressure-sensitive adhesive may include a pressure-sensitive adhesive which can be applied to a food having a common knowledge in the field.

The adhesive layer 100 may be formed by applying a pressure-sensitive adhesive on the back surface of the silica layer 200.

Preferably, the adhesive layer may be formed by applying a pressure-sensitive adhesive to a portion of the back surface of the silica layer 200 to form an impression portion.

Since the inside of the oral cavity is a passage for taking acupuncture, food or beverage, there is always a lot of water. Therefore, when the adhesive layer directly contacts the moisture present in the oral cavity, the adhesive force of the adhesive decreases, and the tooth whitening sticker easily detaches from the teeth. That is, the inside of the mouth has an environment in which water is continuously supplied and maintained, which is fundamentally different from an environment in which a sticker is attached to a nail or a skin surface.

Therefore, in the case of the adhesive layer constituting the adhesive portion, the portion where the adhesive is not applied is provided with a path through which water in the oral cavity can move, and moisture transferred to the path is absorbed by the porous silica of the silica layer 200 The adhesion of the adhesive layer 100 to the oral cavity can be minimized even in an environment with a large amount of water.

That is, when the adhesive layer 100 is formed by applying an adhesive to a part of the back surface of the silica layer 200 and forming the adhesive portion, when the adhesive layer 100 is formed by applying the adhesive on the entire back surface of the silica layer 200 It is possible to have excellent adhesion property and adhesion ability which are much superior to each other.

Also, the adhesive layer 100 may be formed by applying a pressure-sensitive adhesive on its entire surface and forming pores. The moisture in the oral cavity may move to the silica layer 200 by the pores and the tooth whitening component contained in the chemical layer 300 may move to the tooth surface.

The silica layer is to include silica (SiO ₂₎ particles. The silica layer 200 absorbs moisture in the oral cavity to solve the problem that the adhesive property of the adhesive layer 100 located on the back surface of the silica layer 200 is lowered, Such as peroxides, contained in the silica layer 300 is transferred to the tooth surface through the silica layer 200.

That is, the silica particles contained in the silica layer 200 absorb the peroxide contained in the drug layer 300 disposed on the upper surface of the silica layer 200, and water in the oral cavity toward the back surface of the silica layer 200 , The silica particles absorb the moisture in the oral cavity while discharging the already absorbed peroxide. Accordingly, while the problem of decreasing the adhesive force of the adhesive layer is solved according to the absorption of water in the oral cavity, the tooth whitening component such as peroxide contained in the drug layer 300 is moved toward the teeth and absorbs the whitening activity .

Thereby providing a periodic and sustained whitening activity on the surface of the tooth while preventing loss of sticker adhesion due to moisture in the mouth. Therefore, not only the whitening activity can be stably attached to the teeth for a considerable period of time, but also the adhesive layer 100 is detached from the tooth surface, thereby eliminating the side effect of the peroxide occurring due to contact with the gums and the like.

Meanwhile, the drug layer 300 has pores formed therein, and the peroxide included in the drug layer can move toward the silica layer 200 due to the pores. Therefore, the chemical agent layer 300 may be formed using a synthetic resin material selected from the group consisting of a fluorine resin, a urethane resin, an acrylic resin, a silicone resin, a polyethylene (PE), a vinylidene chloride (PVDC) It may be that it contains the peroxide and contains the peroxide using fabric or paper.

The method of allowing the peroxide to be contained in the chemical agent layer 300 includes all of the encapsulation, direct absorption method, and other methods that can be used by those skilled in the art.

The medicament layer 300 may include at least one selected from the group consisting of hydrogen peroxide, carbamide peroxide, calcium peroxide, sodium peroxide, sodium peroxoborate, tetrasodium pyrophosphate peroxides, and mixtures thereof. The term " peroxide "

Preferably, the medicament layer 300 comprises hydrogen peroxide and 10 to 30 parts by weight of carbamide peroxide and 10 to 30 parts by weight of calcium peroxide per 100 parts by weight of the hydrogen peroxide. have.

According to the above-mentioned range, it is easy to absorb the dental porous body, the whitening activity of the teeth can be kept high, and other problems caused by tooth oxidation can be prevented. Furthermore, according to the above-mentioned range, a synergistic effect according to the mixing of the natural extract to be described later can be obtained.

The silica contained in the silica layer may have an average particle diameter of 0.1 to 100 μm. When the average particle diameter of the silica particles is less than 0.1 μm, the effect of releasing the drug due to moisture absorption is not exhibited, so that it is not possible to absorb the water and to transfer the peroxide or other whitening composition contained in the drug layer to the teeth. On the other hand, if it exceeds 100 μm, the amount of the contained porous material is greatly reduced, and the moisture and the capacity of the drug are equilibrated by one use, so that the water absorbing effect is lost, and the adhesive performance of the adhesive layer 100 is lowered. Causing a problem that causes side effects.

Preferably, the silica included in the silica layer may have an average particle diameter of 0.3 to 10 mu m. By the above range, the object of water absorption and peroxide transfer included in the medicament layer can be achieved most effectively.

The silica may be one in which at least a portion of the surface is coated with wax.

When the surface of the silica particles is coated with wax, the porous inlet of the silica is blocked by the wax, and the migration of the peroxide absorbed in the silica due to moisture absorption can be more uniformly maintained by the movement of the wax. In particular, since the wax formed on the surface is continuously peeled off during the water absorption process, the moisture absorption and the drug discharge amount are periodically increased, so that the period of supplying the agent necessary for the whitening activity can be controlled and the lifetime of the tooth whitening sticker can be greatly increased .

On the other hand, the wax may be a wax which can be used for edible purposes, and the wax may be any wax which is known to those skilled in the art.

The medicament layer may further comprise a natural extract selected from the group consisting of Stellaria alsina var. Undulata extract, Clematis apiifolia extract, and mixtures thereof.

As used herein, the term " extract " means that it is used in the art as a crude extract as described above, but broadly includes fractions obtained by further fractionating the extract. That is, the plant extract includes not only those obtained by using the aforementioned extraction solvent, but also those obtained by further applying a purification process thereto. For example, a fraction obtained by passing the above extract through an ultrafiltration membrane having a constant molecular weight cut-off value, and a separation by various chromatography (manufactured for separation according to size, charge, hydrophobicity or affinity) The fraction obtained by the purification method is also included in the plant extract of the present invention.

The extract used in the present invention can be prepared in a powder state by an additional process such as vacuum distillation and freeze-drying or spray drying.

The flea herb is a typical winter winter, and is made of rosemary. Life cycle is two years, but life expectancy is within one year. Generally, in the southern part of Korea, life begins to germinate at the bottom of the rice field after rice harvest. However, when the habitat condition is good, they form a patch and live for many years. The ground in which the flea herb is living is poorly ventilated with mud like rice paddy, so it roots shallowly near the ground surface for root breathing. Flea sprouts can not survive in dry places for a while. Especially, the frequency of observation is high even in the submerged wetland environment where the ripples of the riverside waters and the edges of the wetlands are soggy.

It is also called bread roll. It grows frequently in mountains and fields. The length is about 3m. The young branches have fine hairs. Leaves are opposite leaflets with three small leaves, or two leaflets with three small leaves, and petiole is long. The small leaf is egg-shaped or egg-shaped and has a length of 4 to 7 cm. There are sawtooths with sharp tips and deeply pitted edges, and hair on the back veins.

When the flea and extracts are used, they can be mixed with the peroxide to enhance the whitening activity. In particular, when the peroxide is used in an excessive amount, there is a problem of damaging the surface of the teeth. However, when the extract is mixed with the toothpaste, the activity of the tooth whitening is greatly increased, so that even a small amount of peroxide can exert a high whitening effect. Therefore, the use of a small amount of peroxide can inhibit tooth surface damage caused by the use of peroxides, and has an advantage that the whitening activity can be improved more effectively.

Preferably, the dentifrice activity and the tooth whitening activity can be greatly increased when the flea extract and the pea extract are mixed together with the peroxide.

The medicament layer may further comprise a natural extract selected from the group consisting of Cinnamomum yabunikkei extract, Potentilla chinensis extract, and mixtures thereof.

It grows in the mountains, reaches a height of 15m, the bark is black, the small branch is green and has no hairs. Leaves are alternate phyllotaxis, 6 ~ 15cm long oval shape, both ends are pointed, edges are flat, and there are 3 veins. The leaf surface is shiny, the back side is white like a minute, the petiole is hairless, and the length is 8 to 20 mm. Flowers bloom in early June in yellowish green color and hang on a long peduncle from the axil of leaves with acute inflorescence. The pieces of horns are arranged in 2 lines of 3, and the stamens are arranged in 4 lines of 3 lines. There is no anther on the inner line and 1 pistil. On the other hand, the fruit is a berry, an elliptical shape with a diameter of 12 mm, and ripens in purple to black color from the end of September to the beginning of November.

The scabbard is perennial herbaceous in the fields, streams, and beaches of each country. The growing environment grows in a place where sunlight is abundant. The leaves are 30 to 60 cm long, 2 to 5 cm long, 0.8 to 1.5 cm wide, long oval, no hairs on the surface, but many white hairs on the back. The flower is yellow and blooms at the end of the stem. Its diameter is 1 ~ 2㎝ and the petals are 5 pieces. The fruit runs in broad egg shape around 7 or 8 days.

In the case of further containing the above-mentioned Agolinus edulis extract or Scutellaria zoniflora extract, the activity of the tooth whitening is greatly increased together with the peroxide, and effective penetration of oxides on the surface of the teeth becomes possible, thereby achieving a more effective tooth whitening effect.

The peroxide and the natural extract may be mixed at a weight ratio of 1:10 to 10: 1.

Preferably, the medicament layer comprises 1 to 10 parts by weight of a flea extract against 100 parts by weight of the hydrogen peroxide; 1 to 10 parts by weight of a crude peach extract; 0.1 to 1 part by weight of the extract of the sea bream and 0.1 to 1 part by weight of the scotch flower extract.

By the above-mentioned range, it is possible to effectively suppress the adverse effect that the tooth surface is damaged while increasing the tooth whitening activity of the peroxide. In particular, since the effect of increasing the whitening activity with the peroxide is the most excellent in the above range, the amount of the peroxide to be used can be reduced, and the tooth whitening activity according to long-term use can be reduced.

The natural extract may be nano-encapsulated. When the nanocapsule is formed, the natural extract is dissolved in the peroxide to adjust the acidity of the concentration so that the problem of damaging the tooth surface due to the peroxide can be solved even for long-term use of the sticker for tooth whitening.

That is, in the early stage of use of the tooth whitening sticker, since the concentration of peroxide is relatively high, a strong tooth whitening activity can be obtained and in the latter half, the syneresis by the natural product allows the use of a smaller amount of peroxide, And the problem of damaging the tooth surface due to peroxide can be solved.

The label layer may be formed on the upper surface of a coating layer comprising a material selected from the group consisting of a fluorine resin, a urethane resin, an acrylic resin, a silicone resin, polyethylene (PE), vinylidene chloride (PVDC), PET, PVC, (500). ≪ / RTI >

The coating layer has the advantage of reducing the foreign body sensation inside the oral cavity.

And a pattern or color may be printed on one side of the coating layer.

By printing the color or pattern, the wearer can decorate the shape of the teeth as seen from the outside, and the design can be printed as a bright white tooth or other aesthetics to be utilized as means for expressing personality.

The printing of the pattern or the color includes all the means that can be utilized in a conventional manner in the field.

The tooth whitening sticker according to the present invention allows a tooth whitening composition having an excellent tooth whitening effect to directly contact the tooth surface so that the tooth whitening composition is directly transferred to the tooth surface, So that the effect can be achieved.

Furthermore, it is attached to the tooth surface with a sticker to provide a long-time whitening ingredient to the teeth, and it is possible to prevent the side effect that the whitening component flows to the gum side.

In addition, the sticker for teeth whitening according to the present invention does not have a problem that the sticker adhered to the teeth during the daily life is separated from or peeled off from the teeth, and has a small feeling of heterogeneity.

1 is a sectional view showing a tooth whitening sticker according to an embodiment of the present invention.
2 is a sectional view showing a tooth whitening sticker according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

[ Manufacturing example  1: Manufacture of tooth sticker]

To confirm the effect of the tooth sticker of the present invention, a tooth sticker according to the examples and comparative examples was prepared with the composition shown in Table 1 below. In the following Table 1, the general adhesive layer means that an adhesive layer is applied on the entire one side of the adhesive layer to form an adhesive layer. The above silica layer was made of a layer containing silica only with fine particles having a certain average particle diameter.

Comparative Example Example 1 Example 2 Example 3 Example 4 Example 5 Adhesive layer General adhesions The pressure-sensitive adhesive layer The pressure-sensitive adhesive layer The pressure-sensitive adhesive layer The pressure-sensitive adhesive layer The pressure-sensitive adhesive layer Silica layer - Average particle size 0.1 μm Average particle diameter 0. 3 μm Average particle diameter 10 m Average particle diameter 20 μm Average particle diameter 30 μm Drug layer Hydrogen peroxide Hydrogen peroxide Hydrogen peroxide Hydrogen peroxide Hydrogen peroxide Hydrogen peroxide Cover layer PE film PE film PE film PE film PE film PE film

[ Experimental Example : Test of tooth sticker]

The above-prepared examples and comparative examples were evaluated for 10 days with 10 adults. As the evaluation items, initial adhesion, adhesive retention, tooth whitening activity, and sticker whitening activity life were evaluated and evaluated with an index of 1 to 10. During the evaluation period, coffee and tobacco were restricted by the tester for objective evaluation and food was restricted. The sticky whitening activity lifetime was determined to confirm the water absorption by the particle size of the silica layer itself and the effect of discharging the drug. Five of the 10 adults were selected to remove the sticker for 5 days after sticking, The lifetime of the whitening activity was compared and evaluated by comparing with the other five test subjects.

The results are shown in Table 2 below. The higher the number, the better the effect.

Comparative Example Example 1 Example 2 Example 3 Example 4 Example 5 Initial adhesion 8 9 9 9 9 9 Attachment retention 2 7 8 9 7 6 Tooth whitening activity 3 5 8 9 6 5 Sticker whitening active life 2 6 10 10 6 5

(Unit: index)

Referring to Table 2, it can be seen that the overall evaluation is excellent according to the embodiment. Particularly, in the case of early adhesion, formation of pores in the adhesive layer and adherence to the teeth was more stable, and the opinion that comfortable fit was dominant. In the case of the comparative example, the sticker was difficult to stick to for more than two days while being mixed with the needles, and there was a problem of falling immediately. Particularly, in the process of dropping the sticker, there was a problem that the adhesive surface spreads and hydrogen peroxide flows to the gums to irritate the gums. However, according to Examples 3 and 4, the adhesiveness was excellent, and in particular, the adhesion was excellent in Examples 3 and 4, and the oral secretion and hydrogen peroxide were continuously replaced, thereby improving the whitening activity toward the teeth. And sticky whitening activity life were excellent.

[ Manufacturing example  2: Preparation of whitening composition]

In order to confirm the teeth whitening activity of the whitening composition used in the tooth sticker of the present invention, the following Examples and Comparative Examples were prepared. The following flea extracts, lavender extracts, mulberry extracts and scabbard extracts were prepared by hot water extraction, followed by refining with a vacuum filter, followed by lyophilization and pulverization.

Hydrogen peroxide Flea extract Leaf extract Balsam tree extract Scab flower extract A 100 One One - - B 100 0.5 0.5 0.01 0.01 C 100 One One 0.1 0.1 D 100 10 10 One One E 100 15 15 1.5 1.5

(Unit: parts by weight)

[ Experimental Example : Test of tooth sticker]

The whitening active ingredients A to E prepared in the same tooth sticker as in Example 2 were included, and 10 test subjects were allowed to use the adhesive for 10 days each. The tooth whitening degree was evaluated in comparison with the case of using only hydrogen peroxide, Respectively. The case where only hydrogen peroxide was used was fixed at an index of 5, and each extract was evaluated by an index of 1 to 10 as compared with this. The higher the number, the better the whitening activity.

Hydrogen peroxide A B C D E Whitening effect 5 6 6 7 8 6

(Unit: index)

Referring to Table 4, when the natural extract according to the present invention is used together with hydrogen peroxide, whitening activity is enhanced. In particular, there was no damage to the surface of the teeth caused by hydrogen peroxide, and no side effects were caused by peroxides coming into contact with oral structures such as gums.

On the other hand, when C and D were used, it was confirmed that whitening activity was greatly enhanced. Therefore, it was confirmed that the use of a smaller amount of hydrogen peroxide or a low concentration of hydrogen peroxide can maintain tooth whitening activity.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

100: Adhesive layer
200: silica layer
300: drug layer
400: Cover layer
500: Coating layer

Claims (9)

An adhesive layer;
A silica layer laminated on the adhesive layer;
A chemical agent layer laminated on the silica layer;
And a label layer laminated on the drug layer,
Wherein the pressure-sensitive adhesive layer includes an adhesive portion formed by applying a pressure-sensitive adhesive on at least a part of one surface of the pressure-
Wherein the silica layer comprises silica (SiO ₂₎ particles,
The weak layer is formed with pores,
The medicament layer may comprise at least one selected from the group consisting of hydrogen peroxide, carbamide peroxide, calcium peroxide, sodium peroxide, sodium peroxoborate, tetrasodium pyrophosphate peroxide, And mixtures thereof. ≪ RTI ID = 0.0 >
Sticker for tooth whitening. The method of claim 1, wherein
The silica contained in the silica layer has an average particle diameter of 0.1 to 100 m
Sticker for tooth whitening. 3. The method of claim 2,
The silica is one in which at least a portion of the surface is coated with wax
Sticker for tooth whitening. The method of claim 3,
Wherein the medicament layer further comprises a natural extract selected from the group consisting of Stellaria alsine var. Undulata extract, Clematis apiifolia extract, and mixtures thereof.
Sticker for tooth whitening. 5. The method of claim 4,
Wherein the medicament layer further comprises a natural extract selected from the group consisting of Cinnamomum yabunikkei extract, Potentilla chinensis extract, and mixtures thereof.
Sticker for tooth whitening. The method according to claim 4 or 5,
Wherein said natural extract is nano-encapsulated
Sticker for tooth whitening. The method according to claim 6,
The label layer may be formed on the upper surface of a coating layer comprising a material selected from the group consisting of a fluorine resin, a urethane resin, an acrylic resin, a silicone resin, polyethylene (PE), vinylidene chloride (PVDC), PET, PVC, Lt; RTI ID = 0.0 >
Sticker for tooth whitening. The method according to claim 6,
Wherein the peroxide and the natural extract are mixed in a weight ratio of 1: 10 to 10: 1
Sticker for tooth whitening. 8. The method of claim 7,
And a pattern or color is printed on either side of the coating layer
Sticker for tooth whitening.

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